Ahh?! I didn't catch your exact model before... Mine is a 1012LV-MS. Maybe that's a reason for yours bonding N/G and mine not?as my 1012LV-MK does
Ahh?! I didn't catch your exact model before... Mine is a 1012LV-MS. Maybe that's a reason for yours bonding N/G and mine not?as my 1012LV-MK does
We do not know. Good little boys and girls test four things on inverters before they install them. I didn’t until OP question came up and I didn’t know the answer cuz I wasn’t a good little boy ?Ahh?! I didn't catch your exact model before... Mine is a 1012LV-MS. Maybe that's a reason for yours bonding N/G and mine not?
Does your unit have the Dry Contact Signal on the back panel? Refer to page 10 on the manual, it explains how this is used to control a relay external to the unit for N-G bonding purposes........Ahh?! I didn't catch your exact model before... Mine is a 1012LV-MS. Maybe that's a reason for yours bonding N/G and mine not?
Yes it does.Does your unit have the Dry Contact Signal on the back panel? Refer to page 10 on the manual, it explains how this is used to control a relay external to the unit for N-G bonding purposes........
Just for clarification- is this a recently acquired machine? And MS or MK model?Unit definitely has a floating neutral while on battery. (Tested Voltage right at terminals with the powerstrip disconnected)
Purchased about 6 months ago. MS model.Just for clarification- is this a recently acquired machine? And MS or MK model?
For sure with incoming grid completely disconnected on all three conductors my -MK unit was N-G bonded, also inverter G closed to grid G terminal.
I need to pull everything off mine and test proper.
Yes, I have (buried somewhere towards the beginning of this thread). Lights on tester read "proper wiring". ?Out of curiosity, has anyone plugged a circuit tester into the AC output of these things when AC input is disconnected (battery power -> inverter)?
As of now, I have the Neutrals jumpered and that did resolve the "issue". However, it does require the AC input to always be connected in order for the N/G bond. (I've also thought about hard wiring it to a dedicated breaker in my main panel).Thanks again JAS, much appreciated.
FWIW the post you referenced is #70
Did you get rid of your unit? Did you end up jumper AC IN and AC OUT Neutrals? It sounds like my use case is similar to yours...
Which isn’t a bad thing. That you need to connect it to an electrical system that it derives the neutral ground bond from isn’t a bad thing. As long as you avoid wiring and such a fashion that you create a ground loop that is perfectly fine. It seems ideally suited to that, it does require the AC input to always be connected in order for the N/G bond. (I've also thought about hard wiring it to a dedicated breaker in my main panel).
If you have an in a hunting cabin you should have a breaker panel anyway. The breaker panel that it feeds could/would contain the neutral ground bond. If a generator is connected to it in which the neutral and ground are not connected, then that would still be fine.I'll probably keep the unit…not sure if I will keep it in the capacity I have it setup. IE: I may use it in a diy solar generator box or take it to my hunting cabin... (In which case, I would not keep the neutrals bonded)
Agreed. I’d be likely to use a 4-square box and make it there if I did what you did.there is very little room to jumper the neutrals inside the unit
Turns out I am thinking of doing just this...If you have an in a hunting cabin you should have a breaker panel anyway. The breaker panel that it feeds could/would contain the neutral ground bond. If a generator is connected to it in which the neutral and ground are not connected, then that would still be fine.
Off-grid operation I believe all the MPPs connect ground to neutral internally and automatically. If gen gets connected and starts running I believe it opens that N-G as with any other input power.Turns out I am thinking of doing just this...
Question: Does the MPP need grounding (not bonding) if feeding the breaker panel in the cabin (and that panel is both grounded and has the N/G bond)? If so, how?
It does appear from reports that all newer models do. But, that is not the case on my 1012 MS. (See above posts in this thread). So in my case, feeding the AC in with a generator (no N-G Bond), it makes more sense to keep the N-G Bond in the main panel.I believe all the MPPs connect ground to neutral internally and automatically
You answered your own questions.It does appear from reports that all newer models do. But, that is not the case on my 1012 MS. (See above posts in this thread). So in my case, feeding the AC in with a generator (no N-G Bond), it makes more sense to keep the N-G Bond in the main panel.
In addition, since the MPP units do not have a grounding lug on the case, they need to get their ground from the AC in. But, in the case of a portable generator feeding the AC in... How do I ground it?